<div dir="ltr">Yes it seems the ws forwarding is not working.<div><br></div><div>if you cat that file you should see some content with that id and a host/port that apache should use to connect to the server that is running paraview.</div><div><br></div><div>Otherwise the documentation (link that I previously gave) explain how to use unix group and setup the appropriate rights to that file so apache can read while the launcher can write.</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Aug 24, 2016 at 3:01 PM, Daniel Zuidinga <span dir="ltr"><<a href="mailto:info@seoaachen.de" target="_blank">info@seoaachen.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
how can I check?<br>
<br>
The sessionID is sent to the client. So as far as I understand the
http requests work, but not the ws?<div><div class="h5"><br>
<br>
<br>
<div>Am 24.08.2016 um 22:52 schrieb
Sebastien Jourdain:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div>Are you sure apache has the right to read the <span style="font-size:12.8px">/home/daniel/proxy.txt while the
launcher is writting it?</span></div>
<div><span style="font-size:12.8px"><br>
</span></div>
<div><span style="font-size:12.8px">Do you see some content that
match your sessionId within that file?</span></div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Wed, Aug 24, 2016 at 1:57 PM, Daniel
Zuidinga <span dir="ltr"><<a href="mailto:info@seoaachen.de" target="_blank">info@seoaachen.de</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> <br>
<div>I changed sessionManagerURL in my html file to
vtkWeb.properties.sessionManag<wbr>erURL instead of <a href="http://localhost:8080/paraview" target="_blank">http://localhost:8080/paraview</a><wbr>.
Now I get in firefox:<span><br>
<br>
Use of getPreventDefault() is deprecated. Use
defaultPrevented instead. jquery-1.8.3.min.js:2:0<br>
</span> GET <br>
<a href="http://localhost/proxy" target="_blank">http://localhost/proxy</a> [HTTP/1.1
400 Bad Request 16ms]<br>
null Visualizer:42:13<br>
Firefox can't establish a connection to the server at <a>ws://localhost/proxy?sessionId<wbr>=7d12745c-6a34-11e6-a5dc-<wbr>0016d4e2bc28</a>.
autobahn.min.js:114:0<br>
GET <br>
<a href="http://localhost/proxy" target="_blank">http://localhost/proxy</a> [HTTP/1.1
400 Bad Request 2ms]<br>
null<br>
<br>
...I think one more thing is needed.
<div>
<div><br>
<br>
<br>
Am 24.08.2016 um 21:51 schrieb Daniel Zuidinga:<br>
</div>
</div>
</div>
<div>
<div>
<blockquote type="cite"> I had wrong paths in my
launcher.config properties.<br>
Now the request gets through and the vtk window
opens. But I have still the ws error. Firefox
console:<br>
<br>
Firefox can't establish a connection to the server
at <a>ws://localhost/ws</a>.
autobahn.min.js:114:0<br>
null Visualizer:42:13<br>
Use of getPreventDefault() is deprecated. Use
defaultPrevented instead. jquery-1.8.3.min.js:2:0<br>
No launcher found. Attempting to connect using the
direct WS url. vtkweb-all.js:4456:19<br>
<br>
--- vtk window opens, then:<br>
<br>
Cross-Origin Request Blocked: The Same Origin Policy
disallows reading the remote resource at <a href="http://localhost:8080/paraview" target="_blank">http://localhost:8080/paraview</a><wbr>.
(Reason: CORS header 'Access-Control-Allow-Origin'
missing). <unknown><br>
GET <br>
<a href="http://localhost/ws" target="_blank">http://localhost/ws</a> [HTTP/1.1
404 Not Found 2ms]<br>
null Visualizer:42:13<br>
Firefox can't establish a connection to the server
at <a>ws://localhost/ws</a>.<br>
<br>
<br>
<div>Am 24.08.2016 um 19:18 schrieb Sebastien
Jourdain:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Actually the hostname might be an
issue if you have several network card.
<div>Can you try to use the computer IP? Or
'0.0.0.0' for the launcher if that work?</div>
<div><br>
</div>
<div>Otherwise I did not spotted any issue in
your config.</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Wed, Aug 24, 2016 at
11:14 AM, Daniel Zuidinga <span dir="ltr"><<a href="mailto:info@seoaachen.de" target="_blank">info@seoaachen.de</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> -
apache 2.4.12<br>
- modules are enabled<br>
- launcher.py launches without error,
resrouces and apps section are in the
config file as described in the
documentation<br>
are all ports and hostnames right in my
configuration files? apache is localhost
and paraview also
<div>
<div><br>
<br>
Am 24.08.2016 um 16:22 schrieb
Sebastien Jourdain:<br>
<blockquote type="cite">
<div dir="ltr">Hi Daniel,
<div><br>
</div>
<div>Which version of Apache are
you running?</div>
<div><br>
</div>
<div>Did you enabled all the
modules?</div>
<div><br>
</div>
<div>
<pre style="margin-top:0px;margin-bottom:0px;padding:0px;border:none;outline:0px;font-family:"Source Code Pro",Monaco,Menlo,Consolas,monospace;font-size:0.95em;vertical-align:baseline;color:rgb(77,77,76);line-height:22px;background:none rgb(238,238,238)"><div style="margin:0px;padding:0px;border:0px;outline:0px;font-weight:inherit;font-style:inherit;font-family:inherit;font-size:14.25px;vertical-align:baseline;min-height:22px">$ sudo a2enmod vhost_alias</div><div style="margin:0px;padding:0px;border:0px;outline:0px;font-weight:inherit;font-style:inherit;font-family:inherit;font-size:14.25px;vertical-align:baseline;min-height:22px">$ sudo a2enmod proxy</div><div style="margin:0px;padding:0px;border:0px;outline:0px;font-weight:inherit;font-style:inherit;font-family:inherit;font-size:14.25px;vertical-align:baseline;min-height:22px">$ sudo a2enmod proxy_http</div><div style="margin:0px;padding:0px;border:0px;outline:0px;font-weight:inherit;font-style:inherit;font-family:inherit;font-size:14.25px;vertical-align:baseline;min-height:22px">$ sudo a2enmod proxy_wstunnel</div><div style="margin:0px;padding:0px;border:0px;outline:0px;font-weight:inherit;font-style:inherit;font-family:inherit;font-size:14.25px;vertical-align:baseline;min-height:22px">$ sudo a2enmod rewrite</div></pre>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">For the
launcher configuration, do you
have a proper <span style="color:rgb(77,77,76);font-family:"Source Code Pro",Monaco,Menlo,Consolas,monospace;font-size:14.25px;line-height:22px;white-space:pre-wrap;background-color:rgb(238,238,238)">"resources"</span> and <span style="color:rgb(77,77,76);font-family:"Source Code Pro",Monaco,Menlo,Consolas,monospace;font-size:14.25px;line-height:22px;white-space:pre-wrap;background-color:rgb(238,238,238)">"apps"</span> <wbr>section?</div>
<div class="gmail_quote"><br>
</div>
<div class="gmail_quote">I'm
guessing you are looking at
the following documentation
pages?</div>
<div class="gmail_quote"><br>
</div>
<div class="gmail_quote">- <a href="https://kitware.github.io/paraviewweb/docs/guides/apache_front_end.html" target="_blank">https://kitware.github.io/para<wbr>viewweb/docs/guides/apache_fro<wbr>nt_end.html</a><br>
</div>
<div class="gmail_quote">- <a href="https://kitware.github.io/paraviewweb/docs/guides/python_launcher.html" target="_blank">https://kitware.github.io/para<wbr>viewweb/docs/guides/python_lau<wbr>ncher.html</a><br>
</div>
<div class="gmail_quote"><br>
</div>
<div class="gmail_quote">Once
you have the forwarding of the
launcher request working, the
next part will be the
forwarding of the ws. But we
can talk about it when and if
you run into issue about it.</div>
<div class="gmail_quote"><br>
</div>
<div class="gmail_quote">Seb</div>
<div class="gmail_quote"><br>
</div>
<div class="gmail_quote">On Wed,
Aug 24, 2016 at 2:22 AM,
Daniel Zuidinga <span dir="ltr"><<a href="mailto:info@seoaachen.de" target="_blank">info@seoaachen.de</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<p>I tried to run the
launcher as described in
the docs. But I am still
getting errors when
running <a href="http://localhost/apps/Visualizer/" target="_blank">http://localhost/apps/Visualiz<wbr>er/</a></p>
<p>Firefox console:</p>
<p>------------------------------<wbr>-<br>
</p>
<p>1. when setting
sessionManagerURL in
html set to
vtkWeb.properties.sessionManag<wbr>erURL:</p>
<p>POST <br>
XHR <br>
<a href="http://localhost/paraview/" target="_blank">http://localhost/paraview/</a>
[HTTP/1.1 503 Service
Unavailable 48ms]<br>
Object { error: "The
process did not properly
start.…" }
Visualizer:42:13</p>
<p><br>
</p>
<p>2. when setting
sessionManagerURL in
html to <a href="http://localhost:8080/paraview" target="_blank">http://localhost:8080/paraview</a><wbr>:</p>
<p>Firefox can't establish
a connection to the
server at <a>ws://localhost/ws</a>.
autobahn.min.js:114:0<br>
null Visualizer:42:13<br>
No launcher found.
Attempting to connect
using the direct WS url.
vtkweb-all.js:4456:19<br>
Use of
getPreventDefault() is
deprecated. Use
defaultPrevented
instead.
jquery-1.8.3.min.js:2:0<br>
Cross-Origin Request
Blocked: The Same Origin
Policy disallows reading
the remote resource at <a href="http://localhost:8080/paraview" target="_blank">http://localhost:8080/paraview</a><wbr>.
(Reason: CORS header
'Access-Control-Allow-Origin'
missing).
<unknown><br>
GET <br>
<a href="http://localhost/ws" target="_blank">http://localhost/ws</a>
[HTTP/1.1 404 Not Found
12ms]<br>
null</p>
<p><br>
</p>
<p>So the launcher can't
start the pv webserver?
But running <a href="http://localhost:8080/paraview/1" target="_blank">http://localhost:8080/paraview<wbr>/1</a>
in browser works but
says: {"error": "No
session with id: 1"}<br>
</p>
<p><br>
</p>
<p>My apache config:</p>
<p>-----------------------------<br>
</p>
<p><VirtualHost
*:80><br>
ServerName localhost<br>
ServerAdmin <a href="mailto:info@seoaachen.de" target="_blank">info@seoaachen.de</a><br>
DocumentRoot
/home/daniel/salome_meca/V2016<wbr>/prerequisites/Paraview-v501_E<wbr>DF/share/paraview-5.0/www<br>
ErrorLog
"logs/pv-error_log"<br>
CustomLog
"logs/pv-access_log"
common<br>
### The following
commented lines could be
useful when running<br>
### over https and
wss:<br>
# SSLEngine On<br>
#
SSLCertificateFile
/etc/apache2/ssl/your_certific<wbr>ate.crt<br>
#
SSLCertificateKeyFile
/etc/apache2/ssl/your_domain_k<wbr>ey.key<br>
#
SSLCertificateChainFile
/etc/apache2/ssl/DigiCertCA.cr<wbr>t<br>
#<br>
# <Location
${MY-DOCUMENT-ROOT} ><br>
# SSLRequireSSL On<br>
# SSLVerifyClient
optional<br>
# SSLVerifyDepth 1<br>
# SSLOptions
+StdEnvVars
+StrictRequire<br>
# </Location><br>
# Have Apache pass
these requests to the
launcher :9000<br>
ProxyPass /paraview
<a href="http://localhost:8080/paraview" target="_blank">http://localhost:8080/paraview</a><br>
# Turn on the
rewrite engine<br>
RewriteEngine On<br>
# This is the path
the mapping file Jetty
creates<br>
RewriteMap
session-to-port
txt:/home/daniel/proxy.txt<br>
# This is the
rewrite condition. Look
for anything with a
sessionId= in the query
part of the URL and
capture the value to use
below.<br>
RewriteCond
%{QUERY_STRING}
^sessionId=(.*)$ [NC]<br>
# This does the
rewrite using the
mapping file and the
sessionId<br>
RewriteRule
^/proxy.*$ <a>ws://$</a>{session-to-port:%1}/ws
[P]<br>
<Directory
"/home/daniel/salome_meca/V201<wbr>6/prerequisites/Paraview-v501_<wbr>EDF/share/paraview-5.0/www"><br>
Options Indexes
FollowSymLinks<br>
Order allow,deny<br>
Allow from all<br>
AllowOverride
None<br>
Require all
granted<br>
</Directory><br>
</VirtualHost></p>
<p><br>
</p>
<p><br>
</p>
<p>my launcher.json</p>
<p>----------------------------<br>
</p>
<p> "configuration": {<br>
"host" :
"localhost",<br>
<br>
"port" :
8080,<br>
"endpoint":
"paraview", <br>
"content":
"/.../www",
<br>
"proxy_file"
:
"/home/daniel/proxy.txt",
<br>
"sessionURL": <a>"ws://localhost/proxy?sessionI<wbr>d=${id}"</a>,<br>
<br>
"timeout" :
25, <br>
"log_dir" :
"/home/daniel", <br>
"upload_dir"
:
"/home/daniel",
<br>
"fields" :
["file", "host", "port",
"updir"] <br>
},<br>
</p>
<p><br>
</p>
<p>What am I doing wrong?</p>
<span>
<p><br>
</p>
<pre cols="72">Daniel Zuidinga
Dipl.-Ing.
SEO Aachen
Passstr. 5
52070 Aachen
Tel : 0241 / 450 912 67
E-Mail: <a href="mailto:info@seoaachen.de" target="_blank">info@seoaachen.de</a>
Web : <a href="http://www.seoaachen.de" target="_blank">http://www.seoaachen.de</a> (nur zum Teil aktuell)
Xing : <a href="https://www.xing.com/profile/Daniel_Zuidinga" target="_blank">https://www.xing.com/profile/D<wbr>aniel_Zuidinga</a>
Bald online: Software Tools für Konstrukteure und Bauteilhersteller
<a href="http://www.engineeringonline.de" target="_blank">http://www.engineeringonline.d<wbr>e</a></pre>
</span><div><div><div>Am 22.08.2016 um 22:32 schrieb
Sebastien Jourdain:
</div>
<blockquote type="cite">
<div dir="ltr">Hi Daniel,
<div class="gmail_extra">
<div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">I
want to use paraview web with SSL. As far as I understand
I need apache as a proxy server for that? Or is it
possible with pvpython?
</blockquote>
<div>
</div>
<div>It might be possible with pvpython, but I've never done
it, I've always used apache to rely on a single opened
port and handle the encryption. </div>
<div> </div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">I
have my own launcher which opens pvpython with a different
port for each user. Is this the right way? Will this work
with ssl?
</blockquote>
<div>
</div>
<div>If pvpython directly support the wss connection, you
can be good. Usually the setup, that I do is that I have
Apache serving only the port 443 (https) for both the
static content and the (wss) websocket endpoint. And I use
a mapping file between the Websocket endpoint that get
returned by my launcher and the host/port I should connect
to on the backend to establish the link between the client
and the actual ParaViewWeb server instance.</div>
<div>
</div>
<div>But that does not mean, that's the only way to do it
and if you don't mind having several port open, I don't
see why it could not work.</div>
<div> </div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Concerning:
<a href="https://kitware.github.io/visualizer/docs/" rel="noreferrer" target="_blank">https://kitware.github.io/visu<wbr>alizer/docs/</a>
The web visuailzer should work via npm installation? It
does not work for me:
C:\Users\danie\AppData\Roaming<wbr>\npm\node_modules\pvw-visualiz<wbr>er\bin\pvw-visualizer-cli.js:4<wbr>1
var pvPythonExecs = find(paraview).filter(function<wbr>(file)
{ return file.match(/pvpython$/) ||
file.match(/pvpython.exe$/); });
^
TypeError: find(...).filter is not a function
at Object.<anonymous>
(C:\Users\danie\AppData\Roamin<wbr>g\npm\node_modules\pvw-visuali<wbr>zer\bin\pvw-visualizer-cli.js:<wbr>41:36)
at Module._compile (module.js:409:26)
at Object.Module._extensions..js (module.js:416:10)
at Module.load (module.js:343:32)
at Function.Module._load (module.js:300:12)
at Function.Module.runMain (module.js:441:10)
at startup (node.js:139:18)
at node.js:968:3
</blockquote>
<div>
</div>
<div>Well, I guess I haven't tried to run the new Visualizer
server on a Windows machine. </div>
<div>But with ParaView 5.2 (yet to be released), we should
have a ParaViewWeb back in the binaries. So we should make
sure our Visualizer command line tool work on that
platform as well.</div>
<div>Although, the command line is more for beginners than
anything else as it only simplify the demo usage. In real
word deployment, with a launcher, the true pvpython
command line should be used instead.</div>
<div>
</div>
<div>Here is an example of what you should see in a working
environment:</div>
<div>
</div>
<div>
<div>$ Visualizer -d ~/Downloads/</div>
<div>
</div>
<div>==============================<wbr>==============================<wbr>===================</div>
<div>| Execute:</div>
<div>| $ /Applications/paraview.app/Con<wbr>tents/bin/pvpython</div>
<div>| -dr</div>
<div>|
/Users/seb/Documents/code/Web2<wbr>/visualizer/server/pvw-visuali<wbr>zer.py</div>
<div>| --content</div>
<div>| /Users/seb/Documents/code/Web2<wbr>/visualizer/dist</div>
<div>| --port</div>
<div>| 8080</div>
<div>| --data</div>
<div>| /Users/seb/Downloads/</div>
<div>==============================<wbr>==============================<wbr>===================</div>
<div>
</div>
<div>[...]</div>
<div>
</div>
--
Daniel Zuidinga
Dipl.-Ing.
SEO Aachen
Passstr. 5
52070 Aachen
Tel : 0241 / 450 912 67
E-Mail: <a href="mailto:info@seoaachen.de" target="_blank">info@seoaachen.de</a>
Web : <a href="http://www.seoaachen.de" rel="noreferrer" target="_blank">http://www.seoaachen.de</a> (nur zum
Teil aktuell)
Xing : <a href="https://www.xing.com/profile/Daniel_Zuidinga" rel="noreferrer" target="_blank">https://www.xing.com/profile/D<wbr>aniel_Zuidinga</a>
Bald online: Software Tools für Konstrukteure und
Bauteilhersteller
<a href="http://www.engineeringonline.de" rel="noreferrer" target="_blank">http://www.engineeringonline.d<wbr>e</a>
______________________________<wbr>_________________
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</blockquote>
</div></div></div>
</blockquote></div>
</div></div>
</blockquote>
</div></div></div></blockquote></div>
</div>
</blockquote>
<fieldset></fieldset>
<pre>______________________________<wbr>_________________
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